I am building a new PC and using an old DVD rom from the previous computer. But I don't have a RW drive. Should I just put the DVD rom in the old computer and get a DVD-CD-RW combo drive? or should I just get a CD-RW drive. I looked at this one but don't know much about them. I don't want a DVD-RW because then I can't make CDs for my car (I think). Thanks for the help.